40631130 has 48 divisors (see below), whose sum is σ = 108108000. Its totient is φ = 10581984.

The previous prime is 40631113. The next prime is 40631137. The reversal of 40631130 is 3113604.

40631130 is a `hidden beast` number, since 4 + 0 + 631 + 1 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40631137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1380 + ... + 9119.

It is an arithmetic number, because the mean of its divisors is an integer number (2252250).

Almost surely, 2^40631130 is an apocalyptic number.

40631130 is an abundant number, since it is smaller than the sum of its proper divisors (67476870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40631130 is a wasteful number, since it uses less digits than its factorization.

40631130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555 (or 10552 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 40631130 is about 6374.2552506156. The cubic root of 40631130 is about 343.7845065085.

Adding to 40631130 its reverse (3113604), we get a palindrome (43744734).

The spelling of 40631130 in words is "forty million, six hundred thirty-one thousand, one hundred thirty".